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GREEN INSTRUMENTS G26 Manual

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G26 AMBIENT OIL MIST DETECTOR MANUAL
PART NUMBER.: 02892

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Summary of Contents for GREEN INSTRUMENTS G26

  • Page 1 G26 AMBIENT OIL MIST DETECTOR MANUAL PART NUMBER.: 02892...

  • Page 2: Table Of Contents

    Content Content NTRODUCTION BOUT THIS ANUAL NQUIRIES AND EEDBACK BOUT THE YSTEM 1.3.1 System components 1.3.2 Additional components – O HOOSING THE IGHT LARM EVELS PACITY OF PECIFICATIONS NSTALLATION ENERAL 3.1.1 Control at Delivery 3.1.2 Safety Aspects 3.1.3 Symbol identification TANDARD NSTALLATION 3.2.1...
  • Page 3 G26 Ambient Oil Mist Detector ALIBRATION ALIBRATION PAN CALIBRATION ANUAL ALIBRATION OMMISSIONING TART OF THE SYSTEM ALIBRATION ETTING OF LARM EVELS ETTING OF IGNAL OUTPUTS AINTENANCE ROUBLESHOOTING PARE ARTS 10 A PPENDIX 10.1 M AINTENANCE NSTRUCTION ABLE OF IGURES 1-1: O...

  • Page 4: Introduction

    Green Instruments A/S reserves the copyright of the manual. Without prior written permission of Green Instruments A/S, the manual may not be copied and given to unauthorized people.

  • Page 5: Inquiries And Feedback

    The G26 Ambient Oil Mist Detector uses a green laser light beam based on the principle of light transmission. A light beam with specific spectral characteristics is projected across the space to be monitored for oil mist leakage.

  • Page 6: System Components

    1.4 Choosing the Right Alarm Levels – Opacity of Oil Mist The alarm levels of the G26 Ambient Oil Mist Detector can be adjusted to specific requirements. The variable output as well as the display of the monitoring unit states the level of opacity in percent, i.e.

  • Page 7: Figure 1-1: Opacity Versus Path Length For Different Concentration

    G26 Ambient Oil Mist Detector The alarm level is used as the oil mist alarm while the warning at 50% of the alarm level can be interpreted as a lens cleaning alarm. Fouling of the transceiver lens and/or reflector will result in reduced translucency between the transceiver and the reflector.
  • Page 8 Introduction The default alarm levels for the G26 is based on the calculation for hazardous oil mists including fine oil spray from minor leaks in hydraulic systems and oil mist which has boiled off from a hot surface. Regarding the concentration of oil mist and the path length, the figure above illus- trates different oil mist opacity levels corresponding with different oil concentra- tions and path lengths for the oil droplets ranging from 10-20 µm.

  • Page 9: Specifications

    G26 Ambient Oil Mist Detector 2 Specifications Control and Monitoring Unit Power supply Input Option 1: 100–240 VAC – 50/60 Hz – 1.4 A Option 2: 20 - 30 VDC – 2 A Ambient temperature 0°C – 55°C Analog output: 2 x 4…20 mA max.
  • Page 10 Visualization, recorder and data logging (Upon request) Remote digital display for panel mounting (Upon request) Approvals and Certificates Conform with European Directives; DNV-GL and ABS Marine Type Approval All certificates and declarations of conformity can be downloaded at Green Instruments website: https://greeninstruments.com/downloads/certificates/...

  • Page 11: Installation

    3-3 & Figure 3-4 for installation of transceiver & reflector. Caution Installation and operation of the G26 Ambient Oil Mist Detector and associated equip- ment must be carried out by skilled, trained and certified personnel. Green Instruments A/S does not take any responsibility of the operation of the system and associated equipment whatsoever.

  • Page 12: Control At Delivery

    3.1.1 Control at Delivery Upon receipt of the G26 Ambient Oil Mist Detector, please inspect and confirm that the received items are in accordance with the packing list and not damaged. Any discrepancy should be reported to the supplier immediately. If any of the re- ceived parts are damaged, the shipping company should be informed and new parts made available before completing the installation.

  • Page 13: Symbol Identification

    EU directives 3.2 Standard Installation A G26 Ambient Oil Mist Detecting System can consist of up to 2 sensors (i.e. transceiver/reflector units). Other systems configuration supporting up to 16 sen- sors available upon request. The installation of each transceiver/reflector unit is similar to each other.

  • Page 14: Figure 3-1: Illustration Of A G26 A

    Installation Figure 3-1: Illustration of a G26 Ambient Oil Mist Detector with transceiver/reflector unit Figure 3-2: Mounting position of the transceiver and the reflector...

  • Page 15: Transceiver And Reflector

    G26 Ambient Oil Mist Detector 3.2.2 Transceiver and Reflector The transceiver and reflector are mounted into the alignment brackets as illustrat- ed in Figure 3-3 and Figure 3-4. Special attention must be given to the alignment, ensuring the transceiver and re- flector is mounted precisely centered and directly opposite each other.

  • Page 16: Junction Box

    Installation 3.2.3 Junction box The junction box is an optional item used in cases where the cable between the Control and Monitor unit and the Transceiver exceeds 15 meters and/or in cases where multiple transceivers are daisy chained together. If the scope of supply in- cludes a junction box, the junction box is pre-mounted with a connection cable for easy connection to the transceiver.

  • Page 17: Menu Structure & Configuration

    G26 Ambient Oil Mist Detector 4 Menu structure & Configuration 4.1 Transceiver 4.1.1 Transceiver button function Figure 4-1: Transceiver Interface The transceiver user interface consists of a green power LED, a yellow warning LED and a red alarm LED, a zero and a span button, and 5 signal strength LEDs.

  • Page 18: Setting Of

    Menu structure & Configuration Figure 4-2: Illustration of the strongest signal, no obstructions to the light beam When the illumination changes to one of the LEDs to the left, it indicates that the reflecting beam becomes weaker, i.e. the beam is scattered or blocked, or the transceiver lens and/or reflector become contaminated.

  • Page 19: Set Laser Aligning Function

    G26 Ambient Oil Mist Detector 4.1.2 Set laser aligning function Warning Once you start laser aligning function (section 4.1.2), you need to continue with setting unit address (section 4.1.3) until the new settings are saved (sec- tion 4.1.4). Visible laser radiation! When the transceiver operates in pulsed mode, the laser is classified as Class 1, which is safe under all conditions of normal use.

  • Page 20: Set Unit Address

    Menu structure & Configuration Figure 4-4: Illustration of poor alignment Figure 4-5: Illustration of good alignment After the fine adjustment, the beam to the centre of the reflector, tighten all the bolts and screws on the alignment brackets. Remove the paper or the cardboard used.

  • Page 21: Figure 4-7: Symptom Of Address Conflict

    G26 Ambient Oil Mist Detector Note Please pay attention when pressing SPAN and ZERO: Do not press ZERO before SPAN as this might cause an accidental change of address. Press ZERO button to change unit address to the desired one, e.g. address 1 and 2.

  • Page 22: Save New Settings

    Menu structure & Configuration Note Unit address will always appear shortly, when the transceiver is connected to power supply. Go to the next step – save new settings. 4.1.4 Save new settings To save the new address settings, press and hold SPAN and ZERO button. Wait approximately 5 seconds until all signal strength LEDs turn ON.

  • Page 23: Figure 4-9: The Illustration Of Interface Show

    G26 Ambient Oil Mist Detector Figure 4-9: The illustration of interface show - Enter to Service Mode Please note, the ZERO button must be released before the 2 outer signal strength LEDs turn OFF in order for service mode to be entered.

  • Page 24: Figure 4-11: Service Mode

    Menu structure & Configuration Figure 4-11: Service mode (1 Signal Strength LED represents 10 minutes added to de- fault service mode timer) Figure 4-12:The service mode timer indication max 60 minutes Service mode can be canceled in the same way as it is entered i.e. by pressing and holding ZERO until the 2 outer signal strength LEDs light up (see Figure 4-9), immediately releasing ZERO and pressing and holding ZERO again until 2 outer signal strength LEDs light up once more, then releasing once again.

  • Page 25: Control And Monitoring Unit

    G26 Ambient Oil Mist Detector 4.2 Control and monitoring unit The control and monitoring unit uses a HMI for the configuration, monitoring and visualization. The description of the menu and system configuration can be found in this section. 4.2.1 Home menu Figure 4-13: Home menu with 1 configured sensor Home menu is the first screen when the system is turned on.

  • Page 26: Sensor Menu

    Menu structure & Configuration Black means the sensor is not configured or no data is yet received from the sen- sor. 4.2.2 Sensor menu If only one sensor is configured, the sensor menu will be the same as the home menu.

  • Page 27: Alarm List Menu

    G26 Ambient Oil Mist Detector 4.2.3 Alarm list menu By pressing Alarm on the Sensor Menu of a specific sensor, the Alarm list menu shown on Figure 4-16 will appear. Figure 4-16: Alarm list menu The alarm list menu has 6 function buttons:...

  • Page 28: Figure 4-18: Alarm Info Screen

    Menu structure & Configuration Select an alarm and press Info, an alarm info screen with information about the current selected alarm and suggestion to solve the alarm condition as shown on Figure 4-17 & Figure 4-18 will appear. Figure 4-18: Alarm info screen - e.g. Not aligned alarm...
  • Page 29 G26 Ambient Oil Mist Detector The full alarm list is as follow: Alarm Description Information Sens 1 Error Error at Sensor 1 General error on sensor. Check if a more specific error is present on the same sensor. If not replace the sensor.
  • Page 30 Menu structure & Configuration Alarm Description Information Intensity Run align function to adjust light intensity. In- crease reflector distance. Replace the sensor. Ref 1 H Warning Warning for Low Reference light high. Reference Light Run align function. Intensity Ref 1 H Alarm Alarm for Low Reference light to high.

  • Page 31: Trend Menu

    G26 Ambient Oil Mist Detector 4.2.4 Trend menu Press Trend on the Sensor Menu, the opacity trends of all sensors will be dis- played Figure 4-19. Figure 4-19: Trend menu The opacity values (vertical axis) are shown on a time scale (horizontal axis). The scale of vertical axis is -10% - 100% opacity.

  • Page 32: Figure 4-21: Sensor Setup

    Menu structure & Configuration The Sensor Setup Menu has two function buttons: System Setup: to access to the general System Setup menu Home: to go back to the home menu Figure 4-21: Sensor Setup The light on top of the screen shows the alarm condition. Green/Yellow/Red light means no alarm and/or warning/active warning/active alarm.

  • Page 33: System Setup

    G26 Ambient Oil Mist Detector Note that the monitor and control unit will always provide a warning alarm which is 50% of the Alarm level. During a normal operation, this warning can be inter- preted as a lens cleaning warning.
  • Page 34 Menu structure & Configuration The menu displays the software version of the control and monitoring unit. It has a function button: Home: to go back to the home menu The following parameters of the system can be configured in this menu: Sensor count The sensor count is the total number of the monitoring points, i.e.

  • Page 35: Zero Calibration

    G26 Ambient Oil Mist Detector 5 Calibration Note ZERO and SPAN are adjusted to produce the desired output range cov- ering the lightest and darkest sensing conditions. ZERO: 0% Opacity = 100% Transmission = All light Transmitted (Clear) SPAN: 100% Opacity = 0% Transmission = No light Transmitted (Dark)

  • Page 36: Auto Span Calibration

    Calibration Figure 5-1: Auto span calibration ready to start after the zero calibration is complete (left and right SIGNAL STRENGTH LEDs illuminated) The transceiver interface will appear as shown in Figure 5-2 , after a valid Span calibration meaning the Auto Span Calibration is registered. The interface will continue to show this until timeout of the Auto span.

  • Page 37: Manual Spanc

    G26 Ambient Oil Mist Detector The Auto Span Calibration value will be stored to the memory of the transceiver when the timeout period of 60 seconds has passed. Please note, the beam of light still needs to be blocked – this feature only elimi- nates the need of pressing the SPAN button, while blocking the beam.
  • Page 38 Calibration tion must be carried out again, starting with ZERO, then SPAN calibration. Refer to the alarm log if the cause of the failed calibration is not obvious. .

  • Page 39: Start Of The System

    G26 Ambient Oil Mist Detector 6 Commissioning Before starting the system for the first time after completing the installation, please check and confirm that the all parts are installed correctly and according to the instructions, and that all the connections are secured. Check and confirm all the electrical connections are correct according to the instructions.
  • Page 40 Maintenance 7 Maintenance Besides normal cleaning of the lenses, the system does not require any mainte- nance. The lenses must be carefully cleaned with a cleaning pad (part no. 02398). It is strongly recommended to calibrate the system after cleaning the transceiver lens and the reflector (see chapter 5).
  • Page 41 G26 Ambient Oil Mist Detector 8 Troubleshooting Trouble shooting should always be carried out by trained and certified personnel. The G26 Ambient Oil Mist Detector is connected to hazardous electric voltages, which can cause personal injury if not handled correctly. Trouble Possible Cause →Action...

  • Page 42: Spare Parts

    Part The specific appearance of the parts list is sub- Part Description ject change without notice; the function however will not change 02915 G26 Transceiver module assembly 02870 G26 Reflector module assembly G26 Control & Monitoring Unit 02974 110-240 VAC G26 Control &...
  • Page 43 G26 Ambient Oil Mist Detector Part The specific appearance of the parts list is sub- Part Description ject change without notice; the function however will not change 03163 Cable with multi - connector 00493 Fuse G26 Ambient Oil Mist Detector...
  • Page 44 Appendix 10 Appendix...

  • Page 45: Maintenance Instruction

    G26 Ambient Oil Mist Detector 10.1 Maintenance Instruction Ver.1.9 – Revision July 2019...
  • Page 46 Green Instruments A/S Green Instruments USA, Inc. Green Instruments (S) Pte. Ltd. sales@greeninstruments.com usa@greeninstruments.com sales.sg@greeninstruments.com Erhvervsparken 29 6750 N. Andrews Avenue Suit 200 4008 Ang Mo Kio Avenue 10 9700 Brønderslev, Denmark...

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